Mattress making machinery



Dec. 13, 1932. sHlFMAN 1,891,018

MATTRESS MAKING MACHINERY Filed March 18, 1951 INVENTOR M/uo/vLJ'H/FMA/v BY m mm ATTORNEY-5 Patented Dec. -13, 1932 UNITED STATES- PATENT OFFICE MILTON LOUIS SHIFMAN, OF EAST ORANGE, NEW-JERSEY, ASSIGNOR TO SKIFMAN 3308-,

OF NEWARK, NEW JERSEY, CORPORATION OF NEW JERSEY MATTRESS MAKING MACHINERY Application med larch 18, 1931. Serial No. 528,800.

This invention relates to improvements in wire spring mattress making machinery, and relates more particularly to improvements 1n machinery for weaving the mattress springs 6 together into a mattress unit.

One of the objects of the invention is to provide an improved machine for weaving the upper and lower horizontal 0011s of a mattress together.

A further object of the invention is to provide a machine forweaving the upper and lower horizontal coils of amattress together by coil Wire springs.

A still further ob ect of the invention is I 16 to provide means for properly spacing the vertical coils of a mattress and weaving them together by wire strips. The invention also has other objects,- all of which will be hereinafter more particularly so set forth and claimed.

In the accompanying drawing:-

Figure 1 represents a perspective view of the devices embodyin my invention in operation and weaving the spaced coils of the mattress together and Figure 2 represents a top plan view of two of the adjacent coils after they arewoven together.

' Wire mattresses have heretofore been con.

W structed by arranging a series of helicalv wire springs side by side and binding the to and bottom coils to ether by a longitudina coil spring wire. This binding or weaving operation has been accomplished with conslderable difliculty as the coil springs do not naturally find their proper positions to coil about .and bind together the adjacent contacting coils of the springs of two adjoining rows an must be therefore more or less guided by t hand, so that the end of the 0011 binding spring will start the proper movement about the two horizontal coils that are to be bound to ether. As itwas necessary to rotate the coil bindin spring at the same time that it was guide, the operation was lengthy and a difiicult one. 7

The present invention is intended to overcome the difficulties of such manufacture by rotating the binder coil spring by motor, and

'50 automatically feeding it forward during its rotation while at the same time retainingthe full length of the binding coil in an extended position to prevent tangling or looping. .The coil binding wires are, of course, extremely flexible, and if the forward feed is not held under tension, which at the same time allows an automatic forward movement, the result is a looping or tanglin of the unfed portion of the coil as it is rapi ly rotated, I

In the present machine tangling or looping of the rapidly rotating coil is absolutely prevented and the coil,'at the same time, allowed to automatically feed forward, only being guided by the operator at the time that the end of the coil is taking a bite on the next succeeding pair of horizontal loops of the springs,

In the manufacture of coil spring mattresses, the coil springs 1 are arranged in 2 parallel rows upon tapered spindles 3, ar-

. ranged along near one end of the work table or bench 2. With this arrangement, the two rows of springs arranged on the spindles are woven together top and bottom. These two rows of springs are then lifted from the spindles and again dropped on the spindles with the last row woven on the innermost spindles and a fresh row of unattached springs on the outside row of spindles and the operation repeated.

As the weaving takes place, the Width of the table 2, which is equal to the width of the mattress, supports the woven s rings until the mattress is finally complete Any particular structure of coil springsmaybe employed, either cylindrical or with a double tapered spiral as shown in the drawd mg.

The binding coils 5, of the spring wire are previously coiled in the spiral of sufficient diameter to freely pass about the two adjacent horizontal coils 4, of two adjoining springs. These coils may either be arranged side by side, or one overlapping the other, as shown in Fig. 2.

The feeding forward of the binding coil 5, takes place automatically when the coil is rotated, as the coil being wound in a spiral automatically feeds itself by its grip on the coils 4, after the free end of the spring 5 has 100 been started about the two adjacent coils, by

'hand.

able form of chuck 6. This chuck 6 is rotated In order that both of the operators hands may be free to start this movement of the coil 5, about the coils 4, the rotation of the spring 5 is controlled by a foot pedal 25, which runs along the entire length of the table 2 near the operating ed e, and is supported'by pivoted arms 28. The coil 5, when the operation starts, is secured at one end in a suitby a shaft which passes through a sleeve 29,

which is mounted in a housing 16, containing the usual bevel gears, these gears in turn being 0 erated by a'flexible shaft 17. The shaft 1 is connected to one member of a clutch 19, this clutch being normally en aged by a coil spring 26, the remaining mem er of the clutch being connected to the continuously running motor 20, the motor clutch and other parts being mounted on a frame 22.

the foot pedal rod 25.

It willbe seen from the above that the clutch 19 is normally held in engagement by the spring 26, but that the foot pedal 25 when depressed will operate the bell crank lever 30, and move the clutch out of engagement to stop the rotation of the bindinlg coil 5. As the coil 5 must be of a lengt equal to thelength of the mattress ,to be manufactured, it will be seen that when the operation is first started on any particular row, that there is about 6 feet or more of this coil 5, and that if the coil were not suitably supported under tension, it would become tangled or snarled because of its rapid rotation. I secure the tension necessary for this purpose by'providing a ring 34 WhlCh is pivoted by pins 35 to the sleeve 29 which surrounds the shortshaft driving the chuck 6.

The ring 34 is carried by a frame 8, and this frame which is comprised of two bars forming approximately a triangle is provided at its upper end with a cross bar 9, this bar being journalled in two supports 10,secu'red to the ceiling of the room in which the machine is located. To a crossbar 12 of the frame 8, I. secure one end of a cable 13, this cable in turn passing over two grooved wheels 14, secured to the ceiling 11. A suitable weight 15 is secured tothe end of the cable 13.

By reference to Fi 1 it will be seen that the weight 15 not on y counter-balances the. weight of the frame'S, housing 16, flexible cable 17, and connecting parts, as well as the extended length of the s ring 5, but has sufiicient preponderance 0 weight to tend to move frame 8 to the right so as to always hold the spring 5, under sufficient tension, to prevent this spring when being rapidly rotated,

starting to vibrate and jumping into sn'arls or loops, which, of course, would require undoing the work that had been done, in inserting a new binding spring.

In the weaving of the mattress with the mechanism above described, only a very slight pause or slowing up of the speed is necessary, as the operator guides the end of the, sprin 5 into each succeeding pair of loops 4. Ihe operator simply has to guide the end of the spring 5 as the forward movement of the spring is automatic because of its rotation as before described. It will be seen from the above that the operator is standing almost directly over his work at the edge of the table, and that by binding 4 one row of coils after'another to this outside edge the bulk of the mattress as it grows, moves away from him, and is never interposed between him and-his work.

As the spring 5 moves forward because of its spiral construction, the frame 8, of course is pulled down against the tension of the cable 13 until the spring v5 has boundboth rows of springs 1 together for their entire lengths.

The chuck 6'is then operated to release the end of the spring'5 and a fresh spring secured in the chuck at one end and the operation for the next row started. This operation continues until the mattress is completed. It,

of course, .will be understood that the springs 5 are previously wound in lengths equal to the length of the mattress to be manufactured, and are given the proper diameter to snugly encompass the two adjoining coils 4 when fed forward by the rotation of the spring.

Having thusdescribed my invention, what I claim as new and desire to secureby Letters Patent is:

1. In amachine for manufacturing coil spring mattresses, the combination with no I means for holding mattress springs in rows,

of a pivoted supporting frame movable towards and away fromthe spring supporting means, a weight for holding the frame normally away from the spring sup orting means 'to keep a binding spring und mounted'on the frame.

2. In a machine for manufacturing coil spring mattresses, the combinatlon with er tension, and blnding spring rotat1ng me ans means for holding the mattress springs in rows, of a rotating chuck for receiving the binding mattress spring, means for rotating the chuck and yielding means supporting the chuck. to hold the binding s ring under tension during its forward feed? 3. In a machine for manufacturing mattresses, the combination with means for supporting mattress springs in rows, of a rotating chuck for receiving one end of a binding spring, a pivoted frame supporting the chuck, a motor and connections for rotating the chuck. and a weight and cablefor normally pulling the frame away from themattress springs, but allowing it to'b'e drawn towards them. a a

4. In a machine for manufacturing coil spring mattresses, the combination with means for holding the mattress s rings in rows, of achuck and connections or rotating a binding spring, yielding means for holding the chuck away from the mattress springs, a foot pedal, and mechanism controlled y the foot pedal for starting and stopping the chuck.

5. In a machine for manufacturing coil spring mattresses, means for holdin the mattress springs in rows, devices for he ding and rotating a binding coil, and means tending to pull the coil automatically away from the mattress but yielding to allow its forward feed to keep the rotating binding coil extended its full length.

6. In a machine for manufacturing coil spring mattresses, the combination with means for holding mattress springs in rows, of devices for holding and rotatin a coil and automatic weight operated means or holding the coil extended but allowing it to yiel when fed forward to be wound about the,

mattress springs.

7. In a machine for manufacturing coil spring mattresses, the combination with means for holding rowsof mattress springs, of a device for rotating a binder spring, automatic means tending to pull the binding spring away from the mattress but yieldin to allow it to feed forward, a fixed motor an flexible means for connecting the motor and the spring rotated device. y

In testimon whereof I aifi'x my signature.

M TON LOUIS SHIFMAN. 

